Question

Sixty-nine percent of U.S. heads of household play video or computer games. Choose 4 heads of household at random. Find the probability that all four do.

Answer 1

Explanation:

Looking for the odds of four household leaders playing video games

1*0.69, or just 0.69 represents the odds of one person

0.69 * 0.69 represents the odds of two players

therefore 0.69 * 0.69 * 0.69 * 0.69 is the chance that all four play video games

0.69 * 0.69 * 0.69 * 0.69 ≈ 0.22667, or 22.7%